Question: A dc series motor driving and electric train faces a constant power load. It is running at rated speed and rated voltage. If the

A dc series motor driving and electric train faces a constant power

A dc series motor driving and electric train faces a constant power load. It is running at rated speed and rated voltage. If the speed has to be brought down to 0.25 p.u. the supply voltage has to be approximately brought down to (B) 0.5 p.u (A) 0.75 p.u (D) 0.125 p.u (C) 0.25 p.u

Step by Step Solution

★★★★★

3.48 Rating (151 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock

The detailed ... View full answer

blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Electrical Engineering Questions!

Q:

a. Watson Elementary School contains 30 classrooms numbered 1 through 30. Each classroom can contain any number of students up to 35. Each student takes an achievement test at the end of the school...

Q:

Concern the binary operation * defined on S = {a, b, c, d, e} by means of Table 2.26. Is * commutative? Why? 2.26 Table | a * a b C d e b c abc bcae cabba e b b a b d d e b d C e d d C

Q:

1 What is the primary driver when budgeting CapEx? 2 What is the primary driver when budgeting OpEx? 3 What is the primary driver when budgeting COGS? 4 Which account category is used for...

Q:

Managing Scope Changes Case Study Scope changes on a project can occur regardless of how well the project is planned or executed. Scope changes can be the result of something that was omitted during...

Q:

Question 1: The flux per pole in a synchronous motor with the field circuit ON and the startor disconnected from the supply is found to be 25 mWb. When startor is connected to the rated supply with...

Q:

Hello, you already did chapter 1 and 2 of my MASTERS Thesis already for me. (See attached) So normally you know masters thesis consist of 5 chapters right ??..... But in this case my thesis will be 4...

Q:

1.Sketch a line diagram to the types of business organisation on the basis of ownership 2.What do you understand by joint sector companies? Mention the diagrams for the formation of joint sector...

Q:

1.Sketch a line diagram to the types of business organisation on the basis of ownership 2.What do you understand by joint sector companies? Mention the diagrams for the formation of joint sector...

Q:

What is "profiling"? What are the advantages and disadvantages of its use? How does the use of profiling relate to ethics? 20) A moral and ethical issue raised by the information age is the...

Q:

What is "profiling"? What are the advantages and disadvantages of its use? How does the use of profiling relate to ethics? 20) A moral and ethical issue raised by the information age is the...

Q:

1. Define organization Behavior. 2. List the types of personality. 3. Difference between emotional intelligence and emotional Labour. 4. What do you understand by group dynamics? 5. Define...

Q:

A financial institution is considering outsourcing its information technology-related services. What are some criteria that the institution should consider? Propose a scheme to select a vendor.

Q:

For all students at Walden University, the prediction equation for y = college GPA (range 04.0) and x1 = high school GPA (range 04.0) and x2 = college board score (range 200800) is = 0.20 + 0.50x1 +...

Q:

Which of the following is true regarding access to higher education in Canada? The amount owing by those who take out student loans is increasing. Fewer young people are accessing higher education...

Q:

Arlington Bank of Commerce and Industry is a busy bank that has requirements for between 10 and 18 tellers depending on the time of day. Lunchtime, from noon to 2 P.M., is usually heaviest. The table...

Q:

Ethanol is produced commercially by the hydration of ethylene: C2H4+H2O-->C2H5OH Some of the product is converted to diethyl ether in side reaction 2C2H5OH-->(C2H5)2O+H2O The feed to the reactor...

Q:

Last year Justice League Services purchased and installed a new X1600 Wall-E Super-Smasher used in compacting cars, SUVs, and small trucks into 2 cubic yards of compacted metal. The X-1600 Wall-E...

Q:

2.The city signs several construction-related contracts for goods and services to cost $15 million. here what whole assignment is look like, i don't have any other info except of this 1. A $10...

Q:

Chiptech, Inc., is an established computer chip firm with several profitable existing products as well as some promising new products in development. The company earned $1 a share last year, and just...

Q:

The function f has second derivative given byf''(x)= x(x 5)2(x +1)3.At which values of x does f have a point of inflection?x =0,5, and 1x =0 and 1 onlyx =1 onlyx =5 only

Q:

The coils of the magnetic circuit shown in figure are connected in series so that the mmf's of paths A and B both tend to set up flux in the center leg C in the same direction. The coils are wound...

Q:

The resistances and leakage reactances of a 30-kVA, 60-Hz, 2400-V: 240-V distribution transformer are R1 = 0.68 R2 = 0.0068 , X11 = 7.8 X12 = 0.0780 where subscript 1 denotes the 2400-V winding...

Q:

Replace the 28-tooth rotor of Problem 8.7 with a rotor with 26 teeth. a. Phase 1 is excited, and the rotor is allowed to come to rest. If the excitation on phase 1 is removed and excitation is...

Q:

For each of the sinking funds, calculate (rounded to the nearest dollar): a. The size of the periodic sinking fund payment. b. The balance in the sinking fund at the time indicated in the last...

Q:

For each of the sinking funds, calculate (rounded to the nearest dollar): a. The size of the periodic sinking fund payment. b. The balance in the sinking fund at the time indicated in the last...

Q:

For each of the sinking funds, calculate (rounded to the nearest dollar): a. The size of the periodic sinking fund payment. b. The balance in the sinking fund at the time indicated in the last...